We describe PAX, "Portable Audio Concordance System", a proof-of-concept prototype of a multipurpose, multilingual audio concordance toolkit. The primary goal is to support efficient grammar and lexicon construction in the documentation of unwritten languages;
languages currently included are Ega, Anyi, and Koulango (Ivory Coast), additional samples in German and English. The approach combines methods from corpus linguistics, annotation theory and practice, phonetics and lexicography.